Cabletron Systems 802.1Q manual Displaying the Current Protocol, VLAN ID, and Port Assignments

Chapter 3: VLAN Configuration

Table 3-6 Protocol VLAN Configuration Screen Field Definitions (Cont’d)

Use this field …	To …
Ether type	Enter the values of a new Ether type when CUSTOM is
(Modifiable)	selected in the Protocol Type field.The value 0x0 will
	display, which can be modified. A protocol may have more
	that one Ether Type. Any Ether Type greater than 05dc
	(hex) and less than ffff (hex) may be entered. The
	maximum number of Ether Types configured per switch is
	32. If an attempt is made to enter more that 32, an error
	message, “ETHER TYPE TABLE FULL” displays.
	To enter values of a particular Ether Type, refer to
	Section 3.8.2.

3.8.1Displaying the Current Protocol, VLAN ID, and Port Assignments

In some instances it may be desirable to see which VLAN IDs and the associated ports that are currently assigned to a particular protocol. To display this information, proceed as follows:

1.Use the arrow keys to highlight the Protocol field at the bottom of the screen.

2.Press the SPACE bar to step to the appropriate protocol.

3.Press ENTER. The screen displays all VLAN IDs and associated ports currently assigned to the selected protocol.

4.If there is more information than the screen can display, use the NEXT and PREVIOUS command at the bottom of the screen to display the information.

3.8.2Assigning a Protocol Family to a VLAN ID

To assign all Ether Types associated with a Protocol Family to a VLAN ID, proceed as follows:

NOTE

The list of Ether Type configurations is searched prior to the list of “Protocol Family” configurations when a frame is received on a switch. This means that if Ether Type of 0x0800 is configured on port 10 with VID of 5 and IP is configured on port 10 with VID of 6, the incoming frame will receive the VID 5 as Ether Types have priority over “Protocol Family”.

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